NDMP backup with DataDomain as source

Question

Datadomain DD7200, DDOS 5.4.4.3

Hello,

I want to attempt something, but not sure if it can be done. There became a situation where I needed to set up a CIF share on my datadomain, where one of our application teams is dropping data. Its probably 3tb of data, and I would like to use NDMP to back up that CIF share from the DataDomain. Is this something that can be done? DataDomain is technically a storage device, but Im not sure if it would support an NDMP backup from it. Yes, it sounds silly, but I would in fact be backing up data FROM and TO the same Datadomain.

Thanks,

Todd

ionthegeek · Answer

What is the use case for this? As far as I know, DD does not support outgoing NDMP. However, there may be a different way to do what you're trying to do (e.g. replication).

dynamox · Answer

interesting, why not use snapshots or fastcopy ?

ionthegeek · Answer

More or less where I was going with my follow-up question.

Toddman214 · Answer

This is kind of a unique case, which we only do in this one instance in our environment, so Ive never tried anything like what your asking. So, I can use networker to take a snapshot backup of that CIF data?

ionthegeek · Answer

What is your end goal? What are you trying to accomplish? You can take DD snapshots through the DD Enterprise Manager or the DD OS shell but you should make sure it will do what you need first.

sconstable · Answer

NDMP cannot be done, but I believe your goal is to "Back up" the data domain. seems a little weird, since your DD should only have backups on it.

What I would do in your case is setup an NFS mount to a Linux Networker storage node, it will still have to transfer the data across the network, but only once. Just backup the NFS mount. You will loose your ACLs and it will re-hydrate the files when you back them up.

clebeuva · Answer

I'm trying to do the same thing. I've a CIFS share on Data Domain that I want Networker to backup to a tape target.

ble1 · Answer

Then define CIFS share as save set and back it up to tape.

clebeuva · Answer

It doesn't work. Just gives 'Remote system error - No connection could be made because the target machine actively refused it.' message. Which I presume is a username or password issue but doesn't seem to be.

ble1 · Answer

For CIFS share?  Did you try to map this CIFS share?

mkeil · Answer

You can't backup the share directly from the DD, you've to use an other host which has the CIFS share mapped.

Create a client ressource with the CIFS share as a save set und use save -xL as the backup command.

Maybe you'll run into some permission issues, check this article: https://support.emc.com/kb/314778

Data Domain

NDMP backup with DataDomain as source

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